Question

What two physics mistakes occur in a science ?ction movie that
shows a distant explosion in outer space, where you see and hear
the explosion at the same time?

1. The explosion cannot occur in outer space; if it could, the
faster-moving light
would reach you before the sound.
2. The explosion cannot occur in outer space; if it could, the
sound would reach you
before the light.
3. In outer space there is no material to carry light; if there
were, the sound would
reach you before the light.
4. In outer space there is no air to carry sound; if there were,
the faster-moving light
would reach you before the sound.
5. None of these